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Application filed by Г.К. Карклинь, В.Э. ПутнинfiledCriticalГ.К. Карклинь
Priority to SU732608ApriorityCriticalpatent/SU148666A1/ru
Application grantedgrantedCritical
Publication of SU148666A1publicationCriticalpatent/SU148666A1/ru